Environment Canada is forecasting a mainly sunny day today for the Halton Hills-Milton area, with increasing cloudiness near noon. Wind southwest 30 km/h gusting to 50. High minus 4.

Tonight, however, there will be periods of snow beginning this evening and ending near midnight then 30 percent chance of flurries overnight. Local blowing snow this evening and after midnight. Wind southwest 30 km/h gusting to 50. Low minus 6.

An approaching frontal system from Northwestern Ontario and a strong Arctic high pressure area over the Ohio Valley will produce strong and gusty south to southwest wind in the Caledon area. Localized blowing and drifting snow and associated poor visibilities are expected to redevelop this afternoon ahead of the front. Snow associated with the system is forecast to begin this evening. The combination of fresh snow and strong winds will result in blowing and drifting snow persisting tonight. Winds are expected to begin diminishing Friday morning.

North to south routes in exposed areas will be most susceptible to poor winter travel conditions. Motorists should drive according to the road and weather conditions and be prepared for sudden low visibility in areas of blowing snow.

Please monitor the latest forecasts and warnings from Environment Canada at www.weather.gc.ca